body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #ffffff;
  display: flex;
  flex-direction: column;
  height: 100vh;
  -webkit-user-select:none;
  -moz-user-select:none;
  -ms-user-select:none;
  user-select:none
}

.logo-box {
  width: 100%;
  height: 70%;
  background-color: #e7f0ff;
  display: flex;
  justify-content: center;
  align-items: center;
  box-sizing: border-box;
  border-radius: 32px; /* 모서리 둥글게 */
  overflow: hidden;    /* 이미지가 넘치지 않게 */
}

.logo-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;   /* div에 꽉 차게 */
  display: block;
  margin: 0;
  border-radius: 32px; /* 이미지도 둥글게 */
}

.container {
  width: 100%;
  height: 100%;
  padding: 24px 16px;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-grow: 1;
}

h2 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 24px;
  align-self: flex-start;
  width: 100%;
}

#error1, #error2 {
  color: red;
  margin-top: 0;
  display: none;
}

input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

input[type="number"],
input[type="password"] {
  width: 100%;
  font-size: 16px;
  padding: 18px 14px;
  margin-bottom: 18px;
  border-radius: 12px;
  border: 1px solid #ccc;
  box-sizing: border-box;
}

.btn {
  width: 100%;
  font-size: 16px;
  padding: 18px 14px;
  background-color: #007bff;
  color: white;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 600;
  margin-bottom: 16px;
}

.btn:hover {
  background-color: #0056b3;
}

p {
  font-size: 14px;
  color: #666;
}

a {
  color: #007bff;
  text-decoration: none;
  font-weight: 500;
}

a:hover {
  text-decoration: underline;
}

/* 모바일 반응형 */
@media screen and (max-width: 480px) {
  .container {
    padding: 16px;
  }
  input[type="number"],
  input[type="password"],
  .btn {
    font-size: 15px;
    padding: 16px 12px;
    width: 100%;
  }
  h2 {
    font-size: 22px;
  }
  .logo-box {
    height: 45vh;
  }
}